What you have to understand is that the Rocket is "small production"
The numbers (of sales) just aren't there for a Company such as SuperTrap.
Large Companies want to set up the tooling to do a production run of say 1000 units, how long would it take to sell 1000 Rocket systems ?
Too long for the economics of a large Company. So it's dropped.
I'm now making a Twin muffler system that when combined with my header is about as close as you will get to the Jardine system.